It is the parting of the ways.

People who are driving have to look down; people who aren't have to look up." "Nonsense!" said Margaret, though it seemed to her to be the truth.
"Nonsense, of course," retorted Craig.

"But nonsense rules the world." He caught her roughly by the arm.

"I warn you now, when we--" "Run along, Josh," cried she, extricating herself and laughing, and with a wave of the hand she vanished into the shrubbery.

As soon as she was beyond the danger of having to continue that curious conversation she walked less rapidly.